Improvement in thill-couplings



o.HANBY.j THILL-coUPLIN'G.

Patened'Feb.1,1v875.

i wnnessis:

NA PETERS. PHOTO-UTHOQIAPMER. WASHINGTON. D. C.

UNITED STATES PATENT OFFICE.

WILLIAM o; IIANBY,

AIMPROVEMENT IN THlLL-COUPLINGS.

on osoEoLA, oHIo.`

Specification forming part of Letters Patent No. 173,001, dated February 1, 1876 ;v application filed September 11, 1875.

To all whom it may concern:

Be it known that I, WILLIAM O. HANBY, of

Osceola, in the county of Crawford and Statev of Ohio, have invented a new and useful 1mprovementin 'lhill-Coupling, of which the following is a s'pecication:

Figure 1 is a detail sectional View of my in1. proved thill-coupling. Fig. 2 is atop lview of the saine. Fig. 3 is a side view of the same,

showing a modification of the thill or pole iron.

Similar letters of reference indicate corresponding parts. s

rlhe invention will first be described in connection with drawing, and then pointed out in the claim.

A is a block of such a size 'as to fit in beattached, and upon its rear end is formed a pin, C, which projects downward vertically, so as to pass into a vertical hole formed in the block A, a little in front of the transverse bolt-hole. In the front or side of the pin C is formed a recess, to receive the rounded or conical end of a set-screw, D, which passes in through a screw-hole in the forward end or in the side of the block A, said recess c being so formed that the said set-screw D will always tend to draw the pin C downward. The rear end of the block A, that rests against the rubber block, is'rouuded ott' upon the are of a circle, having its 'center a little in front of the bolt-hole iu the block A, which will give such a form to the rear end of the said block A'that the pressure of the rubber will always hold it ina horizontal position. f-

In applying the device, the block A is forced back against the rubber blockwith a clamp, and the coupling-bolt is inserted. The pins Cof the thill or pole irons may then be inserted in their holes, and by tightening up the set-screws D they will be held securely inplace.

With this construction, by giving one or two'turns to the set-screws D, the thills or poles may be .detached and shifted, and -another turn or two of the set-screws will secure them in place.

I am aware that it is not new in thill-couplings to employ a clip having a perforated block, through which `passes the pintle, to which the thilliron is hinged; but my invention, unlike this, is a non-rattler, the work and wear being brought upon the coupling-bolt,

while the knuckle at that point is subject to l the pressure of the rubber. Again, mine may be used interchangeably'with any other pole f or thills, without any additional fixtures, while the one referred to can oply'be applied to a vehicle constructed especially to receive it.

Having `thus described my invention, I

claim as new and desire to secure by Letters Patentv The thill-iron B, having a pin, C, in combination with the pivoted block A and the clamping-screw D, substantially as and, for the purpose described.

WILLIAM 0. HANBY..

Witnesses:

RACHEL STEEN, ARMITTA D. FOSTER. 

